This Instagram Download Addon for Firefox and Chrome allows you to download images, videos, image slides and story from Instagram using chrome or firefox. The browser add-on needs to be installed first. These will sit on the add-on part of your browser and will be activated when instagram is opened on your the following image list will be shown on your right hand side which can be clicked to download. The images will be loaded on it as you scroll through.
The Instagram Download firefox addon can be downloaded from the official firefox add-on directory: https://addons.mozilla.org/en-US/firefox/addon/instagram-downloader-smjrifle/
The Instagram Download chrome addon can be downloaded via: https://chrome.google.com/webstore/detail/instagram-downloader/kgmpekmelcjpcnbpkgggpmcifiehhhba